Harrogate, Town in England

A new study suggests that the use of antibiotics in people with COVID-19 could result in increased resistance to the drugs' benefits among the wider population.Patients hospitalised as a result of the virus are being given a combination of medications to prevent possible secondary bacterial infections.However, research by the University of Plymouth and Royal Cornwall Hospital Trust suggests their increased use during the pandemic could be placing an additional burden on wastewater treatment works.Writing in the Journal of Antimicrobial Chemotherapy, scientists say this could lead to raised levels of antibiotics within the UK's rivers or coastal waters, which may in turn result in an increase in antimicrobial resistance (AMR), where bacteria become resistant to the action of antibiotics.This would be particularly acute in receiving waters from wastewater treatment works serving large hospitals, or emergency 'Nightingale' hospitals, where there is a concentration of COVID-19 patients.The findings are based on reports that up to 95 per cent of COVID-19 inpatients are being prescribed antibiotics as part of their treatment, and concerns that such a large-scale drug administration could have wider environmental implications."COVID-19 has had an impact on almost every aspect of our lives. But this study shows its legacy could be felt long after the current pandemic has been brought under control. From our previous research, we know that significant quantities of commonly prescribed drugs do pass through treatment works and into our water courses," said Sean Comber, Professor of Environmental Chemistry in Plymouth and the article's lead author."By developing a greater understanding of their effects, we can potentially inform future decisions on prescribing during pandemics, but also on the location of emergency hospitals and wider drug and waste management," added Comber.The COVID-19 guidance issued by the National Institute for Health and Care Excellence (NICE) suggests patients with COVID-19 should be treated with doxycycline and either amoxicillin or a combination of other medications if a bacterial infection is suspected, but to withhold or stop antibiotics if a bacterial infection is unlikely."Common with other hospitalised patients in the UK, and other countries, the majority of our patients with COVID symptoms were prescribed antibiotics because it is very difficult to know whether a patient presenting with symptoms of COVID has an overlying bacterial infection or not," Neil Powell, Consultant Pharmacist at the Royal Cornwall Hospital said."We did a lot of work to try and identify those patients who were unlikely to have a bacterial infection complicating their viral COVID infections in an attempt to reduce the amount of antibiotic exposure to our patients and consequently the environment," Powell added.This research combined patient numbers for UK emergency hospitals set up temporarily around the country with wastewater treatment work capacity and available river water dilution serving the emergency hospital and associated town.Using available environmental impact data and modelling tools developed by the UK water industry, it focussed on one UK emergency hospital -- Harrogate, geared up to treat around 500 people -- and showed the risks posed by doxycycline were low, assuming the hospital was at full capacity."This is a comprehensive environmental safety assessment, which addresses potential risks to fish populations and the food webs they depend on. The data for amoxicillin indicated that while there was little threat of direct impacts on fish populations and other wildlife, there is a potential environmental concern for the selection of AMR if at 100 per cent capacity," Tom Hutchinson, Professor of Environment and Health at the university and a co-author on the research, added.Amoxicillin is used to treat everything from pneumonia and throat infections to skin and ear infections."Antibiotics underpin all of modern medicine, but AMR is an issue that could impact millions of lives in the decades to come. Currently, the COVID-19 pandemic is causing immense suffering and loss of life across the globe, but AMR has been - and will remain - one of the most significant threats to global human health," Mathew Upton, Professor of Medical Microbiology at the university and a co-author on the research said."We conducted this study so that we can begin to understand the wider impact of global pandemics on human health. It is clear that mass prescribing of antibiotics will lead to increased levels in the environment and we know this can select for resistant bacteria. Studies like this are essential so that we can plan how to guide antibiotic prescription in future pandemics," added Upton.( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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